2738846281 has 4 divisors (see below), whose sum is σ = 2752749252. Its totient is φ = 2724943312.

The previous prime is 2738846273. The next prime is 2738846287. The reversal of 2738846281 is 1826488372.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2338206025 + 400640256 = 48355^2 + 20016^2 .

It is a cyclic number.

It is not a de Polignac number, because 2738846281 - 2³ = 2738846273 is a prime.

It is a super-2 number, since 2×2738846281² = 15002557901895061922, which contains 22 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2738846287) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6951190 + ... + 6951583.

It is an arithmetic number, because the mean of its divisors is an integer number (688187313).

Almost surely, 2^2738846281 is an apocalyptic number.

It is an amenable number.

2738846281 is a deficient number, since it is larger than the sum of its proper divisors (13902971).

2738846281 is a wasteful number, since it uses less digits than its factorization.

2738846281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13902970.

The product of its digits is 1032192, while the sum is 49.

The square root of 2738846281 is about 52333.9878186251. The cubic root of 2738846281 is about 1399.1229678735.

The spelling of 2738846281 in words is "two billion, seven hundred thirty-eight million, eight hundred forty-six thousand, two hundred eighty-one".